As COVID-19 spreads rapidly in cities around the world, the virus poses an urgent challenge to mayors and city health officials worldwide. Mayor Yvonne Aki-Sawyerr of Freetown, Sierra Leone, joins Dr. Kelly Henning, who leads the public health program at Bloomberg Philanthropies, to discuss how Freetown is responding to the COVID-19 pandemic, how global mayors are sharing information during the crisis, and what’s keeping mayors hopeful right now.